JPS5830609Y2 - airless sprayer - Google Patents

Description

[Detailed description of the invention] This invention relates to an improved structure of an airless sprayer that is not equipped with a compressor, and is designed to improve the application effect by freely changing the spray direction while maintaining the body alignment in a certain stable state. It is an object of the present invention to provide the above-mentioned sprayer configured as follows.

Generally, as shown in the first diagram, this type of sprayer has an armature 3 disposed on a solenoid coil 2 housed and fixed in a main body 1 to form an electromagnetic device, and a switch 5 on a grip 4 extending integrally from the main body 1. By applying an alternating current voltage to the coil 2 by protruding it, the armature 3 can swing in an arc with its upper part as a fulcrum, and the main body 1
A cylinder 7 is screwed and fixed to a housing 6 which extends perpendicularly to the grip 4 with screws 8, and a piston 9 is inserted in the longitudinal direction of the housing 6 from the main body 1 to the above-mentioned ature 3.
A spring 10 is elastically installed between the cylinder 7 and the piston 9, so that the piston 9 moves together with the armature 3 and reciprocates within the cylinder due to the elastic action of the spring 10. It is made operable, and the lid body 1 is attached to the main body 1.
1 is integrally molded, and a container 12 for storing liquid paint or the like is screwed and suspended therein, and an inlet 13 and an outlet 14 communicating with the container 12 are formed in the cylinder 7, and the housing 6 is Valve cone 1 with valve action on the free end
By screwing the nozzle 16 through the nozzle 5, the solenoid coil 2 and the spring 10 cause the armature 3 and the piston 9 to reciprocate, thereby sucking paint etc. from the container 12 into the cylinder 7. It is configured to spray like this.

By the way, since the above-mentioned sprayer usually weighs about 1.5 to 2 kg, it is set so that when the main body 1 is held by the grip 4, the spraying work is performed at a position where the weight balance of the entire machine is stable. The nozzle 1 screwed onto the housing 6 normally has a spray direction perpendicular to the fuselage.
6.

However, since the spray direction is fixed for the above-mentioned aircraft, if you want to change the spray direction upward or downward, you must tilt the entire aircraft to match that direction. Therefore, it is necessary to hold and operate the grip 4 with the weight of the main body 1 unbalanced, and vibrations generated by the operation of the main body make stable operation difficult, causing physical fatigue and hindering the spraying operation. This poses a problem in that the spraying effect is reduced, and when the container 12 tilts as the gutter body 1 tilts, it may become impossible to suction the paint or the like if it falls below a certain level.

In addition, it is known that the housing 6 and the nozzle 16 are connected by a bendable metal pipe, and the pipe is bent and deformed in a certain direction to change the spray direction, but it can be used as a spare part. The installation must be changed as necessary, and the assembly and disassembly work is complicated, and there are problems such as the pipe is easily crushed when bent and deformed, impairing spray performance. .

The present invention has been improved by focusing on these problems, and one embodiment of the invention will be described below in detail based on the attached Figures 2 and 3, using the same reference numerals for the same or equivalent parts as in Figure 1. .

In the figure, the main body 1 is molded with resin so that it is divided into two vertically and joined from the left and right sides, and the 7-ring 6 is integrally formed with the main body 1 to form a certain space inside. be done.

Further, two pins 17 are integrally protruded from the inner wall of the housing 6 at symmetrical positions.
Two legs 19 extending parallel to each other with a constant gap are fitted and pivotally connected to the ends of the legs 8 .

Further, a plurality of four portions 20 are formed radially on the left and right inner walls of the housing 6 with the pin 17 as the center.

A bottomed hole 21 is formed at the position of the bamboo forest on the magnolia side of the leg 19 of the joining member 18, and a spring 2 is installed in the hole 21.
2 is inserted, and the butene 1-ball 23 is disposed at its tip so as to press against the inner wall of the housing 6 and selectively engage with the plurality of four parts 20.

Further, a screw hole 24 is formed in the center of the joining member 18 from the front side, and a small diameter hole 26 is formed from the screw hole 24 on the rear side using a stepped portion 25 as a partition.

Further, the tightening member 27 is formed in a hollow shape, and this tightening member 2
A rotating ring 28 is integrally formed on the outer periphery in the middle of 7, and a threaded portion 29 and a tapered portion 30 are formed on the outer periphery with the ring 28 as a boundary. The end of the flexible pipe 31 connected to the cylinder 7 (first illustration) is fitted, and the threaded portion 29 of the tightening member 27 is threaded into the threaded hole 24 of the joining member 18 to form a tapered shape. By inserting and protruding the portion 30 into the small diameter hole 26 through the stepped portion 25, the flexible pipe 31 is fixed to the joining member 18 in a watertight manner.

Another threaded portion 32 is formed on the other outer periphery of the ring 28, and the nozzle 16 is screwed onto the threaded portion 32 at the tip of the tightening member 27 to constitute the present device.

That is, in the present device, the legs 19 formed on the joint member 18 that connects the nozzle 16 and the flexible pipe 31 are pivotally connected to the pins 17 protruding from the inner wall of the housing 6, and a plurality of legs are attached to the inner wall of the housing 6. By selectively engaging the formed four parts 20 with a butene ball 23 disposed in the hole 21 of the joining member 18 and pressed by a spring 22, the direction of the nozzle 16 with respect to the housing 6 can be freely and stably Accordingly, the spray direction can be arbitrarily changed while the main body 1 is held in a position where its weight balance is stable, and work can be carried out, thereby reducing the strain on the body caused by the work. becomes possible.

In addition, the nozzle 16 can be angularly displaced at a position very close to the housing 6, making it possible to accurately aim the spray direction and optimizing the application effect, as well as prevent vibrations in the machine's operation. Even when the nozzle 16 is turned on, the direction of the nozzle 16 that has been selected and set does not shift, and the set direction can be stably maintained.

Further, the direct connection between the nozzle 16 and the lIJ'' flexible vibrator 31 is achieved by a screw part 29 formed on the outer periphery of a hollow cylindrical tightening member 27 that is integrally attached with a rotating ring 28 in the middle.
The flexible pipe 31 is tightly inserted into the tip-pal part 30 using the tapered part 30 adjacent thereto, and the threaded part 29 is screwed into the threaded hole 24 formed in the joining member 18. By protruding and inserting into the small diameter hole 26 which communicates with the screw hole 24 and the stepped portion 25 as a partition, a flexible pipe 31 is crimped between the stepped portion 25 and the tapered portion 30 to make it flexible. The pipe 3] and the joining member 18 can be connected watertightly, and by screwing the nozzle 16 into the threaded part 32 formed around the nozzle of the tightening member 270, the pipe 31 can be connected from the pipe 12 to the pipe 31. The liquid sucked through is sprayed from the nozzle 16.

As described above in detail, the present invention provides a housing 6 formed in the main body 1 with a connecting member 18 that connects the flexible pipe 31 extending from the cylinder 7 and the nozzle 16 opened outward of the main body 1. At the same time, the connecting member 18 is rotatably arranged in the front direction of the housing 6 so that it can be held stationary within a certain angular range, so that the spray direction from the nozzle 16 can be accurately determined without changing the holding direction of the main body 1. Since the main body 1 can be maintained in a constant shape, there is almost no liquid left in the container 12, and it can be used economically.

Further, a hollow tightening member 27 having a rotating ring 28 formed protrudingly formed in the middle thereof has a threaded portion 29 on one outer periphery and a tapered portion 30 at its tip, and a threaded portion 32 on the other outer periphery. ,
The end of the flexible pipe 31 is inserted into the tapered part 30, and the threaded part 29 adjacent to the tapered part 30 is screwed from the front into the threaded hole 24 formed in the joining member 18, and the tapered part 30 is inserted into the tapered part 30. The part 30 protrudes rearward from the small diameter part 26 adjacent to the threaded hole 24 and separated by the step part 25, and the nozzle 16 is screwed into the other threaded part 32, so that the housing 6
There is an advantage that the airtightness between the flexible pipe 31 and the nozzle 16 can be maintained reliably by the positional displacement caused by the rotation of the joining member 18 against the flexible pipe 31, and the spray effect can be maintained for a long time.

[Brief explanation of the drawing]

Figure 1 is a partially sectional side view of the conventional device, Figure 2.
FIG. 3 is a sectional view of the main part of the proposed device. Body: 1, Amateur: 3, Housing: 6, Screw 1-
Nozzle: 9, Cylinder nearer, Nozzle: 16, Joining member: 18
, Threaded hole: 24 Step part: 25, Small diameter part: 26, Tightening member:
27, Ring: 28, Thread part: 29, 32, Taper part: 30, Flexible pipe: 31°

Claims (2)

[Scope of utility model registration request] (1) An electromagnet and an armature are installed in the main body, and the swinging motion of the armature caused by the excitation of the electromagnet causes paint, etc., to be sucked up into the cylinder by the reciprocating motion of the piston that engages with the armature, and then sprayed from the nozzle, A connecting member is formed on the main body, with one end of the flexible pipe disposed in communication with the cylinder, and connecting the other end of the flexible pipe with the nozzle disposed outside the main body. An airless sprayer, characterized in that the connecting member is pivotally attached to a housing and is rotatably disposed so as to be able to be held stationary at each position in a predetermined angular range in the front direction of the housing. (2) A hollow tightening member with a protruding rotating ring formed in the middle has a threaded part on one outer periphery and a tapered part at its tip, and a threaded part is formed on the other outer periphery, and a tapered part is formed on the other outer periphery. inserting the end of the flexible pipe and screwing the threaded portion adjacent to the tapered portion into the threaded hole formed in the joining member from the front;
Claim 1, characterized in that the tapered part is adjacent to the threaded hole and protrudes rearward from a small diameter part separated by a stepped part, and a nozzle is screwed into the other threaded part. Airless sprayer as described in section.